Hello,
yesterday, in the process of bloat control, our maintenance script decided to do a vacuum full on a table, because there was more than 50% free space / dead records due to a massive update.
The table normally takes about 20minutes to do a vacuum full (int he last couple of months we already did this 2 times), but this time it took over 8hours, while the table did not grow significantly.
Does anyone has an idea what could have triggered the vacuum go this slow?
wkr,